Effects of temperature on the low cycle fatigue behaviour of nitrogen alloyed type 316L stainless steel

Srinivasan, V. S. ; Sandhya, R. ; Bhanu Sankara Rao, K. ; Mannan, S. L. ; Raghavan, K. S. (1991) Effects of temperature on the low cycle fatigue behaviour of nitrogen alloyed type 316L stainless steel International Journal of Fatigue, 13 (6). pp. 471-478. ISSN 0142-1123

Full text not available from this repository.

Official URL: http://linkinghub.elsevier.com/retrieve/pii/014211...

Related URL: http://dx.doi.org/10.1016/0142-1123(91)90482-E

Abstract

Strain-controlled low cycle fatigue tests have been conducted in air between 298-873 K to ascertain the influence of temperature on LCF behaviour of nitrogen-alloyed type 316L stainless steel. A strain amplitude of ± 0.60% and a symmetrical triangular waveform at a constant strain rate of 3 × 10-3 s-1 were employed for all tests. Crack initiation and propagation modes were evaluated, and the deformation and damage mechanisms which influence the cyclic stress response and fatigue life identified. The cyclic stress response at all temperatures was characterized by an initial hardening to the maximum stress, followed by gradual softening prior to attaining saturation. Temperature dependence of fatigue life showed a maximum in the intermediate temperature range. The drastic reduction in fatigue life at elevated temperatures has been ascribed primarily to the combined influence of dynamic strain ageing effects and oxidation-enhanced crack initiation, while the lower life at room temperature is attributed to detrimental effects associated with deformation-induced martensite.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:316L Stainless Steel; Low Cycle Fatigue; Temperature Effects; Dynamic Strain Ageing; Deformation; Fracture
ID Code:18144
Deposited On:17 Nov 2010 13:06
Last Modified:18 May 2011 06:53

Repository Staff Only: item control page